Replacing a shower waste

Hi All, I have jacked up the tiles on my shower base with intention of just doing a basic face lift with new tile etc. I broke the shower waste and now think i have no choice but to jack quite wide and deep around the waste so I can get the broken waste off the pipe. Does anyone have any advice on how to do this? Even if i can jack deep enough to get better access to the pipe, how does the old waste come off the pipe as it would be glued on wouldn't it??
I have tried to attach a couple of photos to help you see what I mean.
Any advice much appreciated!

Attached Thumbnails http://www.renovateforum.com/attachm...e-img_0948.jpg http://www.renovateforum.com/attachm...e-img_0947.jpg



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